The FTK3520NN from First Silicon is a MOSFET with Continous Drain Current 640 to 800 mA, Drain Source Resistance 370 to 650 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage 0.5 to 1.2 V. Tags: Surface Mount. More details for FTK3520NN can be seen below.